SECTION	Title	Time
§ 121.229	§ 121.229 Location of fuel tanks.	July 24, 2025
§ 121.231	§ 121.231 Fuel system lines and fittings.	July 24, 2025
§ 121.233	§ 121.233 Fuel lines and fittings in designated fire zones.	July 24, 2025
§ 121.235	§ 121.235 Fuel valves.	July 24, 2025
§ 121.237	§ 121.237 Oil lines and fittings in designated fire zones.	July 24, 2025
§ 121.239	§ 121.239 Oil valves.	July 24, 2025
§ 121.241	§ 121.241 Oil system drains.	July 24, 2025
§ 121.243	§ 121.243 Engine breather lines.	July 24, 2025
§ 121.245	§ 121.245 Fire walls.	July 24, 2025
§ 121.247	§ 121.247 Fire-wall construction.	July 24, 2025
§ 121.249	§ 121.249 Cowling.	July 24, 2025
§ 121.251	§ 121.251 Engine accessory section diaphragm.	July 24, 2025
§ 121.253	§ 121.253 Powerplant fire protection.	July 24, 2025
§ 121.255	§ 121.255 Flammable fluids.	July 24, 2025
§ 121.257	§ 121.257 Shutoff means.	July 24, 2025